Isao Enomoto

Okayama University of Science, Okayama University, Tokyo Ohka Kogyo (Japan)

Papers

Total Citations

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About

Isao Enomoto is a robotics engineer whose work centers on the development of novel direct-drive actuation systems, specifically for robotic applications. His primary research area is the design and realization of innovative stepping motors that eliminate the need for external sensors or complex gearing, focusing on both pneumatic and electric variants. Enomoto’s major contribution is the invention of the "nutation motor," a class of direct-drive stepping motor that achieves high torque and high-resolution positioning through a unique reduction mechanism based on a pair of bevel gears. His most cited work, "Pneumatic direct-drive stepping motor for robots" (2003, 20 citations), introduced a pneumatic nutation motor capable of 720 steps per rotation, designed for safe operation in hazardous environments without electrical components. This was complemented by his development of an electric nutation motor (2004, 5 citations), optimized through finite element magnetic field analysis. Collectively, his research on the nutation motor (2005, 3 citations) demonstrates a systematic approach to creating robust, high-performance actuators that bridge the gap between pneumatic and electric drive systems, offering a compelling solution for direct-drive robotics.